definitions 2.0 / 5 based on 1 rating ? Chemistrymeasurement and particle type definitionsASOCR Created by: hope falconerCreated on: 09-09-13 16:38 Relative Formula Mass: The weighted mean mass of a formula unit compared with one-twelfth of the mass of an atom of carbon-12. 1 of 8 Relative Atomic Mass: The weighted mean mass of an atom of an element compared with one-twelfth of the mass of an atom of carbon-12. 2 of 8 Relative Isotopic Mass: The mass of an atom of an isotope compared with one-twelfth of the mass of an atom of carbon-12. 3 of 8 Relative Molecular Mass: The weighted mean mass of a molecule compared with one-twelfth of the mass of an atom of carbon-12. 4 of 8 Isotope: atoms of the same element with different numbers of neutrons and different masses 5 of 8 Atomic Number: the number of protons in the nucleus of an atom. 6 of 8 Mass Number: the number of particles (protons and neutrons) in the nucleus. 7 of 8 Ion: a positively or negatively charged atom or (covalently bonded) group of atoms (a molecular ion) 8 of 8
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